diff --git a/apps/api/src/services/decision_manager.py b/apps/api/src/services/decision_manager.py
index d774a080..0c2bca8b 100644
--- a/apps/api/src/services/decision_manager.py
+++ b/apps/api/src/services/decision_manager.py
@@ -1318,6 +1318,50 @@ class DecisionManager:
         """
         action = token.proposal_data.get("kubectl_command", "")
 
+        # 2026-04-15 ogt: YAML 規則引擎優先 — 架構斷點修復
+        # 根因：LLM 生成的 kubectl_command 與 YAML 規則引擎的 NO_ACTION / SSH 指令完全脫節
+        # YAML 規則是人工審閱的權威來源，LLM 只是輔助
+        # 修復策略：
+        #   1. YAML → NO_ACTION → 立即返回，不執行任何操作
+        #   2. YAML → SSH 指令（非 kubectl）→ 覆蓋 LLM 生成的 action，讓 SSH 路由生效
+        _alertname_for_yaml = incident.signals[0].labels.get("alertname", "") if incident.signals else ""
+        if _alertname_for_yaml:
+            try:
+                from src.services.alert_rule_engine import match_rule as _yaml_match
+                _yaml_r = _yaml_match({
+                    "labels": incident.signals[0].labels if incident.signals else {},
+                    "alert_type": _alertname_for_yaml,
+                    "message": "",
+                    "target_resource": incident.affected_services[0] if incident.affected_services else "unknown",
+                    "namespace": "awoooi-prod",
+                })
+                if _yaml_r:
+                    if _yaml_r.get("suggested_action") == "NO_ACTION":
+                        logger.info(
+                            "auto_execute_yaml_no_action",
+                            incident_id=incident.incident_id,
+                            alertname=_alertname_for_yaml,
+                            reason="YAML 規則明確標記 NO_ACTION，不執行自動修復",
+                        )
+                        token.state = DecisionState.READY
+                        token.proposal_data["auto_executed"] = False
+                        token.proposal_data["blocked_reason"] = f"YAML: NO_ACTION for {_alertname_for_yaml}"
+                        await self._save_token(token)
+                        _fire_and_forget(_push_decision_to_telegram(incident, token.proposal_data))
+                        return
+                    _yaml_cmd = (_yaml_r.get("kubectl_command") or "").strip()
+                    if _yaml_cmd and not _yaml_cmd.startswith("kubectl"):
+                        # YAML 給出 SSH / docker 指令 → 覆蓋 LLM 生成的 kubectl action
+                        action = _yaml_cmd
+                        logger.info(
+                            "auto_execute_yaml_cmd_override",
+                            incident_id=incident.incident_id,
+                            alertname=_alertname_for_yaml,
+                            yaml_cmd=_yaml_cmd[:80],
+                        )
+            except Exception as _yaml_err:
+                logger.debug("auto_execute_yaml_check_error", error=str(_yaml_err))
+
         # Phase 6 ADR-087: 自我降級守衛（AIOPS_P6_SELF_DEMOTION 控制）
         # SLO 違反 → 全域信心閾值調高；連續違反 → 保守模式，所有自動執行降為人工
         # 2026-04-15 ogt + Claude Sonnet 4.6（亞太）: Phase 6 初始建立